Pop icon Prince has vowed never to sing 50 of his own songs again, because of their explicit content. The Purple Rain hitmaker, who became a Jehovah's Witness six years ago (00), has removed songs including Cream and GET OFF from his live repertoire, and insists there is enough music containing vulgar language already. He says, "You can't push the envelope any further than I've pushed it. So stop. "What's the point? So much of what we see on TV and hear on the radio is debased. I will not add to that."